化工学报Issue(2)：404-415,12.DOI:10.11949/j.issn.0438-1157.20151222
用于甲烷-氮气体系分离的膜技术研究进展
Progress in membrane technology for CH4-N2 separation
李雯 1王志 1李潘源 1许家友 1李楠 1王纪孝1
作者信息
- 1. 天津大学化工学院化学工程研究所，天津化学化工协同创新中心，化学工程联合国家重点实验室，天津市膜科学与海水淡化技术重点实验室，天津 300072
- 折叠
摘要
Abstract
Natural gas as an efficient and clean fossil fuel plays an important role in the transformation of energy structure in China. Some conventional and unconventional natural gases contain excessive nitrogen, which could not meet the pipeline specification [nitrogen content < 4%(vol)] and decrease the heat value of natural gas. Therefore, nitrogen removal from natural gas is essential to achieve the efficient utilization of fossil fuel. Compared with traditional separation technologies such as cryogenic distillation and adsorption, the membrane-based gas separation technology possesses distinct advantages of operational flexibility, low investment and low energy consumption, exhibiting great potential in energy and environmental fields. The gas transport mechanisms suitable for CH4-N2 separation are introduced. Moreover, the developments of membrane materials and corresponding membranes for CH4-N2 separation are reviewed from CH4-selective and N2-selective membranes. Furthermore, the feasibility analysis of a two-stage membrane process with CH4-selective or N2-selective membrane is compared in different cases (nitrogen removal from conventional natural gas, shale gas and coalbed gas). Finally, prospects on membrane technology for CH4-N2 separation are presented.关键词
天然气/甲烷/氮气/膜/分离/膜过程Key words
natural gas/methane/nitrogen/membrane/separation/membrane process分类
化学化工引用本文复制引用
李雯,王志,李潘源,许家友,李楠,王纪孝..用于甲烷-氮气体系分离的膜技术研究进展[J].化工学报,2016,(2):404-415,12.
